US4914785A - Device to feed fiber silvers - Google Patents

Device to feed fiber silvers Download PDF

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Publication number
US4914785A
US4914785A US07/227,350 US22735088A US4914785A US 4914785 A US4914785 A US 4914785A US 22735088 A US22735088 A US 22735088A US 4914785 A US4914785 A US 4914785A
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US
United States
Prior art keywords
sliver
housing
guiding surface
set forth
guiding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/227,350
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English (en)
Inventor
Friedrich Hauner
Heinrich Spangenberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rieter Ingolstadt Spinnereimaschinenbau AG
Original Assignee
Schubert und Salzer Maschinenfabrik AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schubert und Salzer Maschinenfabrik AG filed Critical Schubert und Salzer Maschinenfabrik AG
Assigned to SCHUBERT AND SALZER MASCHINENFABRIK AKTIENGESELLSCHAFT, A CORP. OF GERMANY reassignment SCHUBERT AND SALZER MASCHINENFABRIK AKTIENGESELLSCHAFT, A CORP. OF GERMANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HAUNER, FRIEDRICH, SPANGENBERGER, HEINRICH
Application granted granted Critical
Publication of US4914785A publication Critical patent/US4914785A/en
Assigned to VANTICO INC. AND VANTICO A&T U S INC. (NOW KNOWN AS HUNTSMAN ADVANCED MATERIALS AMERICAS INC.) reassignment VANTICO INC. AND VANTICO A&T U S INC. (NOW KNOWN AS HUNTSMAN ADVANCED MATERIALS AMERICAS INC.) TERMINATION OF SECURITY INTEREST Assignors: DEUTSCHE BANK AG NEW YORK BRANCH, AS AGENT
Assigned to VANTICO INC. AND VANTICO A&T U S INC. (NOW KNOWN AS HUNTSMAN ADVANCED MATERIALS AMERICAS INC.) reassignment VANTICO INC. AND VANTICO A&T U S INC. (NOW KNOWN AS HUNTSMAN ADVANCED MATERIALS AMERICAS INC.) TERMINATION OF SECURITY INTEREST Assignors: DEUTSCHE BANK AG NEW YORK BRANCH, AS AGENT
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/04—Guiding surfaces within slots or grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
    • B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
    • B65H63/0322—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators using capacitor sensing means, i.e. the defect signal is a variation of impedance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the instant invention relates to a device for feeding fiber slivers to a processing machine with at least one sliver guide equipped with a guiding surface over which the fiber sliver is guided.
  • the invention also includes a process for the production of a sliver guide.
  • a current procedure deflects running fiber slivers by means of sliver guides into a horizontal position while they are still in the area of the spinning can, and feeds them in this position to a processing machine, e.g. a drawing frame.
  • a monitoring device is disposed before the machine intake to ensure that the machine is stopped in case of sliver breakage, before the sliver end runs into the machine. Contact rollers, photoelectric barriers and sensors are used as monitoring devices.
  • the disadvantages of such monitoring devices are that the bare sliver monitors, in addition to the danger of being damaged, risk being damaged by fly. Further, in setting up the fiber sliver containers in a long row, the operator must cover a long distance, for instance to bring the broken fiber sliver from the hindmost container forward to the machine intake, to combine it with the other broken end and to restart machine. This increases the machine stoppage times.
  • the object is attained by the invention in that the guiding surface also serves as a monitoring device for the sliver.
  • the sliver guide also assumes the function of a sliver monitor so that early detection of sliver breakage is possible with the normal arrangement of the first sliver guide. As seen in the direction of sliver movement, the guide is downstream of the spinning can contaning the fiber sliver.
  • the monitoring device is enclosed in the housing of the sliver guide, which is provided with a guiding surface, and which has an opening on the side of said guiding surface.
  • the monitoring device is thus protected from fiber fly damage.
  • the installation of the monitoring device within the housing is facilitated by the fact that the housing also has an opening on the side opposite the guiding surface.
  • a sensor, embedded within a casting compound poured into the housing, is preferably used as the sensor which is connected through the electric connections to a control to stop the machine when the sliver breaks.
  • the sensor shall, preferably, be one functioning on basis of capacitance, making it possible to detect sliver breakages which occur after the fiber sliver has passed the sliver guide, and after the rear sliver end, as seen in running direction, remain lying on the sliver guide as a result of the breakage.
  • Improved sliver guidance and scanning is achieved because the guiding surface is in form of a plane.
  • the opening in the guiding surface is made in form of a slit extending transversely to the running direction of the fiber sliver. This makes it possible to achieve scanning of the fiber sliver over a wide surface.
  • the housing and the casting compound possess nearly the same physical properties. In this way no gaps, in which fibers can accumulate, open up between casting compound and housing during heat expansion, for instance.
  • the monitoring device is installed in immediate proximity of a spinning can containing the fiber sliver, the breakage of the fiber sliver or the end of the fiber sliver are quickly detected and the operator only has to cover a short distance to repair the break.
  • the senor is electrically connected to a switching device.
  • the switching device preferably contains the activating functions for remote control of the machine. If the switching device is installed near the monitoring device, the operator is able to restart the machine more rapidly after the elimination of a defect in the fiber sliver, as he will have to cover shorter distances to restart the machine. If the electric connections between sensor, switching device and switch-off control are installed in essentially closed channels, the risk of damage is reduced. If the triggering of the monitoring device by an optical signal transmitter can be indicated, this has the advantage of making it possible to quickly identify a faulty fiber sliver. If the optical signal transmitter is installed in immediate proxity of the monitoring device, the operator is able to reach the damaged spot in the fiber sliver by the shortest route.
  • the invention further relates to a process for the production of a sliver guide with an integrated scanning device, characterized in that the housing is clamped in an upside-down position over a die and the sensor is placed into the housing from the side opposite the guiding surface and embedded in a casting compound.
  • any air bubbles that may remain in the casting compound are caused to move away from the guiding surface, which at the same time becomes a scanning surface so that a homogenous structure can be formed at that location.
  • FIG. 1 is a top front perspective view of the sliver guide of the invention
  • FIG. 2 is a sectional view, taken through the sliver guide, along line II--II of FIG. 1;
  • FIG. 3 illustrates a device for the insertion of a monitoring device into the sliver guide, in a side view and partially in a section;
  • FIG. 4 is a top view of a feeding frame with a plurality of the sliver guides mounted on it.
  • FIGS. 1 and 2 show a sliver guide 1 with a housing 2, attached to a holding pipe or bar 3, by means of screws 31.
  • the guiding surface 20 is made in form of a plane surface.
  • Housing 2 is provided with an opening in form of a slit 21 near the guiding surface 20. Slit 21 extends transversely to the running direction of the fiber sliver up to the proximity of the lateral guards 11. Housing 2 is also provided with an opening 22 on the end of housing 2 opposite the guiding surface 20, allowing for free access to the interior of housing 2.
  • a monitoring device which ascertains the presence of the fiber sliver and checks its running is set into the guiding surface 20.
  • the monitoring device is set into housing 2 and is protected from dirt and damage.
  • a sensor 4 functioning on basis of capacitance, is the preferred monitoring device.
  • the sensor 4 is embedded in a casting compound in housing 2, and extends with its one end into slit 21 which is filled with casting compound 23.
  • the distance "a" between the upper edge of the sensor 4 and the upper edge of the guiding surface 20 is not greater than 1.5 mm, so that reliable triggering of the sensor 4 is ensured.
  • the sensor 4 is covered by a casting compound 23. It is, however, also possible to provide a wall of housing 2 over the sensor 4.
  • the sensor 4 is embedded in the housing 2 of the sliver guide 1 by means of a device shown in FIG. 3.
  • the sliver guide is placed with its guiding surface containing slit 21 on a die 5 which also has a plane surface, and is pressed down on the die by means of a clamping device 51.
  • a portion of the casting compound 23 is then introduced through the opening 22 in a housing 2 which is opposite slit 21, so that slit 21, and part of housing 2 are filled with the casting compound 23.
  • This first portion of the casting compound 23 is suitably introduced by means of a brush which eliminates air pockets in the casting compound 23.
  • sensor 4 After application of this base layer, sensor 4 is set into housing 2 which is then filled with the casting compound 23. Precise positioning of the sensor 4, as it is set into the housing 2, is ensured by a holding device 52. By embedding the sensor 4 "head down" in housing 2, air bubbles present in the casting compound 23 rise and move away from the guiding surface 21, which is now also a scanning surface, so that a homogenous mass is provided at that point. After the hardening of the casting compound, the guiding surface 20 is polished so that no fibers may be separated from the fiber sliver.
  • FIG. 4 shows a feeding frame, serving to feed a plurality of fiber slivers to a drawing frame or to another processing machine.
  • Four holding pipes 3 are attached to a central pipe, extending in the direction of the fiber sliver's path.
  • the sliver guides 1, with the integrated sliver monitor are located at both ends of holding pipes 3.
  • the sliver guides 1 are located above, or at least in immediate proximity of spinning cans 8 filled with fiber slivers, of which only one is shown.
  • the fiber sliver taken from one of the spinning cans 8 is fed over the guiding surface 20 of sliver guide 1 and, depending upon the distance between the spinning can and the machine, over additional sliver guides, en route to the processing machine 6. No monitoring devices are inserted into the additional sliver guides (not shown), however, in order to save expenses.
  • the sensors 4, integrated into the sliver guides 1, are connected to a switch-off device 45, and to switching devices 46, on the feeding frame by means of electric connections 41, 42, 43 and 44, which are installed within the holding pipes 3 and within the central pipe 7 so as to be protected from dirt and damage.
  • the sliver breakage between spinning can 8 and sliver guide 1 the sensor 4 detects the absence of the sliver as the sliver end passes and transmits a signal to the switch-off device 45 which stops the drive motor of the machine. Sensor 4, furthermore, recognizes sliver breakage occurring between the sliver guide 1 and machine 6, i.e. when the fiber sliver no longer runs over the guiding surface 20 but remains laying on it. The sensor 4 then transmits a signal to the switch-off device to switch off the machine.
  • the two sliver ends remain so close together after a sliver breakage thanks to the integration of the monitoring device within the sliver guide 1, located in immediate proximity of the spinning can 8, that they can easily be seized by the operator and quickly spliced together.
  • the machine 6 can, therefore, be put back into operation in the briefest possible time by activating one of the switching devices 46.
  • the switching device 46 contains a conventional start switch for the remote control of the machine so that the operator can start up the machine 6 from the location at which the sliver breakage has occurred. For the operator to cover short distances, and for the stoppage time of the machine 6 to be as brief as possible, the switching device 46 is installed close to the sliver guide 1 in which sensor 4 is located.
  • the optical signal transmitters 47 are installed in the immediate proximity of the monitoring device. When the monitoring device is triggered they indicate that the operator must look for a fiber sliver breakage at that location. This configuration of the device, further reduces the stoppage time of the machine 6.
  • the arrangement of the switching devices 46 is selected in FIG. 4 in such manner that each switching device 46 can be triggered by two monitoring devices.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US07/227,350 1987-08-05 1988-08-02 Device to feed fiber silvers Expired - Fee Related US4914785A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3725904 1987-08-05
DE19873725904 DE3725904A1 (de) 1987-08-05 1987-08-05 Vorrichtung zum zufuehren von faserbaendern sowie verfahren zum herstellen eines bandfuehrers

Publications (1)

Publication Number Publication Date
US4914785A true US4914785A (en) 1990-04-10

Family

ID=6333064

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/227,350 Expired - Fee Related US4914785A (en) 1987-08-05 1988-08-02 Device to feed fiber silvers

Country Status (8)

Country Link
US (1) US4914785A (en, 2012)
EP (1) EP0302322B1 (en, 2012)
JP (1) JPH0696811B2 (en, 2012)
CN (1) CN1026600C (en, 2012)
BR (1) BR8803660A (en, 2012)
CS (1) CS276260B6 (en, 2012)
DE (2) DE3725904A1 (en, 2012)
IN (1) IN172115B (en, 2012)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5086542A (en) * 1990-11-30 1992-02-11 Franklin James R Electronic stop motion for textile draw frame
US6081972A (en) * 1997-09-27 2000-07-04 Rieter Ingolstadt Spinnereimaschinenbau Ag Fiber band feed apparatus with guide and monitor for breakage
US6543093B2 (en) * 2000-01-28 2003-04-08 TRüTZSCHLER GMBH & CO. KG Apparatus for detecting displacements and/or presence of sliver in a fiber processing machine
CN102367613A (zh) * 2011-05-25 2012-03-07 余叔慧 纺织线连续性检测机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679226A5 (en, 2012) * 1989-07-04 1992-01-15 Benninger Ag Maschf
DE4024474A1 (de) * 1990-08-02 1992-02-06 Schlafhorst & Co W Luntenfuehrungskanal einer spinnvorrichtung
EP0679599A3 (de) * 1994-04-29 1996-10-30 Rieter Ag Maschf Faserband-Überwachungseinrichtung.
DE19749831A1 (de) * 1997-09-27 1999-04-01 Rieter Ingolstadt Spinnerei Faserbandverarbeitende Textilmaschine mit einer Zuführvorrichtung von Faserband
DE102008021218A1 (de) * 2008-04-28 2009-10-29 TRüTZSCHLER GMBH & CO. KG Überwachungseinrichtung für mindestens ein laufendes Faserband an einem Streckwerk einer Textilmaschine, Z.B. Strecke, Karde, Kämmmaschine o. dgl.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU189336A1 (ru) * Автоостанов для ленточных и других машин
GB714936A (en) * 1951-11-02 1954-09-08 Electrical Products Colne Ltd Improvements in stop motions for gilling and like textile machines
US3916687A (en) * 1972-11-21 1975-11-04 Loepfe Ag Geb Apparatus for monitoring yarn-like structures
US4229628A (en) * 1977-08-17 1980-10-21 Karl Mayer Textilmaschinenfabrik Gmbh Combined damper and thread breakage sensor for textile machines
GB2092187A (en) * 1979-09-05 1982-08-11 Shiujia Ohsawa Yarn-break/yarn-stop detecting device
EP0071141A2 (en) * 1981-07-29 1983-02-09 ROJ ELECTROTEX S.p.A. Sliver detecting device for dividers of spinning cards
US4428097A (en) * 1983-02-28 1984-01-31 Russell Corporation Process and apparatus for stopping draw frames and the like

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4968020A (en, 2012) * 1972-11-07 1974-07-02
EP0028425A1 (en) * 1979-09-13 1981-05-13 "BARCO ELECTRONIC N.V." abbreviated into "Barco" Electronic thread monitor
JPH0756543Y2 (ja) * 1984-06-06 1995-12-25 カシオ計算機株式会社 テレビジョン受像機
JPS6116374U (ja) * 1984-06-29 1986-01-30 敷島紡績株式会社 切断検知付スライバ−ガイド
DD237296A1 (de) * 1985-05-15 1986-07-09 Textima Veb K Fadenbruchmeldevorrichtung, insbesondere fuer ringspinnmaschinen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU189336A1 (ru) * Автоостанов для ленточных и других машин
GB714936A (en) * 1951-11-02 1954-09-08 Electrical Products Colne Ltd Improvements in stop motions for gilling and like textile machines
US3916687A (en) * 1972-11-21 1975-11-04 Loepfe Ag Geb Apparatus for monitoring yarn-like structures
US4229628A (en) * 1977-08-17 1980-10-21 Karl Mayer Textilmaschinenfabrik Gmbh Combined damper and thread breakage sensor for textile machines
GB2092187A (en) * 1979-09-05 1982-08-11 Shiujia Ohsawa Yarn-break/yarn-stop detecting device
EP0071141A2 (en) * 1981-07-29 1983-02-09 ROJ ELECTROTEX S.p.A. Sliver detecting device for dividers of spinning cards
US4428097A (en) * 1983-02-28 1984-01-31 Russell Corporation Process and apparatus for stopping draw frames and the like

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5086542A (en) * 1990-11-30 1992-02-11 Franklin James R Electronic stop motion for textile draw frame
US6081972A (en) * 1997-09-27 2000-07-04 Rieter Ingolstadt Spinnereimaschinenbau Ag Fiber band feed apparatus with guide and monitor for breakage
US6543093B2 (en) * 2000-01-28 2003-04-08 TRüTZSCHLER GMBH & CO. KG Apparatus for detecting displacements and/or presence of sliver in a fiber processing machine
CN102367613A (zh) * 2011-05-25 2012-03-07 余叔慧 纺织线连续性检测机

Also Published As

Publication number Publication date
JPH0696811B2 (ja) 1994-11-30
IN172115B (en, 2012) 1993-04-10
CN1026600C (zh) 1994-11-16
CS276260B6 (en) 1992-05-13
DE3878335D1 (de) 1993-03-25
DE3725904A1 (de) 1989-02-16
EP0302322B1 (de) 1993-02-10
BR8803660A (pt) 1989-02-14
CS545688A3 (en) 1992-01-15
EP0302322A2 (de) 1989-02-08
CN1031266A (zh) 1989-02-22
EP0302322A3 (en) 1990-12-19
JPH01118635A (ja) 1989-05-11

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